*{
    margin: 0;
    padding: 0;
}
li {
    list-style: none;
}
html {
    font-size: 14px;
}
main {
    width: 800px;
    margin: 80px auto;
    
}
main h4 {
    text-align: center;
    margin-bottom: 20px;
}
.tabsbox {
    width: 800px;
    border: 1px solid #d7ab9a;
    margin: 80px auto;

}
.fisrstnav {
    position: relative;
    width: 800px;
    height: 50px;
    line-height: 1;
   text-align: center;
   border-bottom: 1px solid #ccc;
}
.fisrstnav ul li {
    text-align: center;
    height: 50px;
    float: left;
    border-right:1px solid #ccc;
    border-bottom:1px solid #ccc;
  
}
.fisrstnav .liactive {
    border-bottom: 1px solid #fff;
    z-index: 999;
}
.fisrstnav ul li span {
    line-height: 50px;
    margin-left: 8px;
    cursor: pointer;
}
.fisrstnav ul li span input{
    width: 60px;
    height: 50%;
}
 .tabscon section input{
    /* width: 60px; */
    width: 100%;
    height: 80%;

}

.fisrstnav ul li span:nth-child(2){
    cursor: default;
    position: relative;
    top: -15px;
}
.fisrstnav .tabadd {
    position:absolute;
    top: 10px;
    right: 10px;
    line-height: 12px;
    float: right;
    border: 1px solid #ccc;
    cursor: pointer;
}
.tabscon section{
    padding: 20px;
    height: 200px;
    display: none;
}
.conactive {
    display: block !important;
}